aculeus

noun acu·le·us \ə-ˈkyü-lē-əs\

Definition of aculeus

plural

aculei

\ə-ˈkyü-lē-ˌī\

zoology

  1. :  a sharp-pointed process; specifically :  an insect's ovipositor especially when modified into a sting

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Origin and Etymology of aculeus

borrowed from New Latin, going back to Latin, “stinger, spine (of a fish), sharp point, barb,” from acū-, stem of acus “needle” + -leus, noun suffix (perhaps originally diminutive) — more at 1acute


First Known Use: 1702


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